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System Level Evaluation of LTE-V2V Mode 4 Communications and Its Distributed Scheduling

Published on Jun 4, 2017
· DOI :10.1109/VTCSPRING.2017.8108463
Rafael Molina-Masegosa4
Estimated H-index: 4
,
Javier Gozalvez24
Estimated H-index: 24
Sources
Abstract
The 3GPP has recently published the first version of the Release 14 standard that includes support for V2V communications using LTE sidelink communications (referred to as LTE-V, LTE-V2X, LTE-V2V or Cellular V2X). The standard includes a mode (mode 4) where vehicles autonomously select and manage the radio resources without any cellular infrastructure support. This is highly relevant since V2V safety applications cannot depend on the availability of infrastructure-based cellular coverage, and transforms LTE-V into a possible (or complimentary) alternative to 802.11p. The performance of LTE-V in mode 4 is highly dependent on its distributed scheduling protocol (sensing-based Semi-Persistent Scheduling) that is used by vehicles to reserve resources for their transmissions. This paper presents the first evaluation of the performance and operation of this protocol under realistic traffic conditions in urban scenarios. The evaluation demonstrates that further enhancements should be investigated to reduce packet collisions.
  • References (2)
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